(Ch. 07) Consider the relation below: Car_Sales (Car_model (A), Equipment (B), Color (C), Price (D)), with the...

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(Ch. 07) Consider the relation below: Car_Sales (Car_model (A),Equipment (B), Color (C), Price (D)),
with the data (only two Equipment options (Fully_equipped orStandard_equipped), and only two
colors (Red or Blue), but many different prices are possible) : Youneed to answer the following
questions based on the only values in the table below.
Car_model (A) Equipment (B) Color (C) Price (D)
A-001 Standard_equipped Red 12,000
A-001 Fully_equipped Blue 16,000
A-001 Fully_equipped Red 16,000
A-001 Standard_equipped Blue 12,000
A-002 Standard_equipped Red 10,000
A-002 Fully_equipped Blue 15,000
A-002 Fully_equipped Red 15,000
A-002 Standard_equipped Blue 10,000
1) Based on a common-sense understanding of the above data, whatare the possible candidate
keys of this relation?
2) What is a functional dependency in the above (You do not need tolist all possible FDs)?
3) Decompose the above relation into two smaller relations based onthe functional dependency in
2).
4) List all multivalued dependencies in the result of 3).
5) What will the final decomposition look like?

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4.4 Ratings (755 Votes)

1 Candidate keys are those columns which take part in forming the primary key for a table relation It means that the candidate keykeys uniquely identify a row in the given table From the given table Carmodel Color and Equipment will be the candidate keys It is so because combination of these three values of a See Answer

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